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The benefits of virtualization are clear cut – massive financial savings in the long run. Virtualization enables organizations to use inexpensive hardware as terminals for multiple desktops which lowers costs in energy, hardware, maintenance and licensing. From a daily user’s standpoint, the convenience of accessing their personal desktops from any device effectively accelerates their time-to-value. However, the transition to virtualization can be costly and companies have to cough up now to achieve the benefits later.

Virtualization enables users to access distributed enterprise applications securely from any remote client device — when it works. If the network fails to perform against defined standards, end users of virtual applications and desktop sessions experience sluggish performance, system freezes and often outright disconnects. Regardless if Virtual Desktop Infrastructure (VDI)  is hosted in your own data center, or remotely, all performance issues – and finger pointing – will come down hard on an IT team.

While occasionally hosted on the LAN, VDI is more commonly reached over a WAN connection. If the performance of this link cannot be ensured, there is no point in virtualizing. Due to the nature of virtualization, a majority of stalls occur when employees are accessing their desktops over the WAN. Critical VDI links can become compromised during peak usage and need to be continuously monitored.

While we all know the frustration that slow applications produce, end users have zero patience for latency or poor performance when it comes to their entire desktop. VDI carries the highest sensitivity level of all applications and its success rating is directly dependent on user satisfaction.

IT professionals who do not pre-asses the network before virtualizing, put their jobs on the line. It is common to underestimate how much data is cycling weekly until there are attempts to move it, and taking an accurate reading of the WAN link is critical. Virtual software providers offer bandwidth requirements – but can the network guarantee that that bandwidth is available? Even during peak utilization? Is there space left to grow?

Requirements for a Successful VDI deployment

• Insight into the critical links while continuously monitoring the performance of VDI from the perspective of your remote site end users.

• Understanding of the measurement from the connection of end users back to the server and the ability to compare real-time against the key performance indicators needed by VDI services to perform properly.

• Alerting and reporting on network issues affecting system and virtualized application performance for pro-active troubleshooting.

Current tools used to monitor VDI include Xangati, Liquid Labs and Lakeside. These solutions are critical for monitoring the health and state of the virtual machines or locations where the application is being consumed. This means that the connection between end users and the virtualized servers is often left unsupervised. There may be green lights showing for all the devices, yet the phone is bright red with complaints. When polling devices produce a summary every few minutes, seconds of latency can be invisible on a monitoring screen, but it won’t be to the engineer who receives the phone call. VDI performance is dependent on the links between remote users and servers.

PathView Cloud offers the ability to assess, monitor and remotely troubleshoot performance from a virtual or physical system to any other target across LANs, WANs, even segments you don’t own or manage.

Want to learn more? Visit AppNeta or start a free trial on your network today!

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"Many customers looking to implement a VoIP solution for the first time have absolutely no idea how critical a clean data path is to its usability. We use PathView and PathView Cloud to get an in-depth look at a customer's network health. It's like an MRI for their IT departments." – Eric Knaus, president of RonEK Communications


How are you ensuring a successful transition before plugging in the first phone?

VoIP, Video and Unified Communications are highly cost-effective network services. While your wallet may be breathing a sigh of relief, your network is about to get the wind knocked out of it by the  weight of VoIP and video conferencing services. Network performance is dependent on existing applications and user activity so network engineers implementing VoIP must take this into account.

In the past, enterprise companies dedicated a separate network or connection specifically for VoIP. If the phones don’t work, your business stops. For many organizations, adding to the existing network demand and performance challenges is unrealistic.

Throwing VoIP onto a network without pre-assessing is like jumping into a pool without checking for water (ouch!). Without a full comprehensive inspection of your surroundings, the results will be painful.

As VoIP moves toward a standard application regardless of business size, network engineers are forced to piggy back VoIP onto the existing infrastructure. And for any network engineer who wants to maintain the performance of existing applications AND ensure the performance of the new VoIP services, a pre-deployment network assessment is critical

An Effective VoIP Assessment will:

• Measure the call load capability of the network

• Identify the faults and shortcomings of the network

• Provide a holistic view of the network’s ability to handle data and voice traffic

• Lower the project’s cost estimates

• Verify service level agreements (SLAs)

• Eliminate the network as a gating factor in the VoIP project

A functioning network does not always equal a prepared network. Issues in the infrastructure may not be visible until the weight of a VoIP implementation crushes it.

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But where are the problems that are going to obstruct VoIP performance?

Three key benefits to conducting Advanced Network Assessments:

1. Test how well the network will perform without deploying a single device. VoIP pre-deployment assessment should look at the current state of the converged network, evaluate its ability to support VoIP and identify the dysfunctions that are restricting performance and the requirements to meet call load need.

2. Look at the life-cycle of your network in relation to VoIP. Generate call loads over days or weeks to take into account on and off peak network services. See in real-time how scheduled back-ups, data uploads and periodic events will affect voice quality.

3. Simplicity. Take it one site at a time. If the company decides to bring on a new location, your assessment process should not start from scratch.

Pre-deployment assessments should be done prior to purchasing or deploying any VoIP equipment or making any upgrades. Get yourself a complete analysis of the end-to end data network, recording important measurements such as bandwidth, utilization, throughput, loss, jitter, latency and MOS. A proper assessment will identify and isolate faults on the network that currently inhibit application performance.

PathView Cloud will ensure a successful VoIP deployment and ongoing performance. PathView Cloud generates a series of packet bursts that are placed on the network in a proprietary manner and collect the information required for a full analysis of the involved network segment from end-to-end

Want to learn more? Visit AppNeta or do a FREE pre-assessment on your network today with the 14-day free trial!

The job of a network engineer or network administrator is to solve problems; everything from backups to cables to firewalls to viruses. All of these tasks are related to moving data moving across the network in an optimal and efficient manner so that users can do the work that drives the business.

Every network engineer’s job is different but one thing is for sure – with the exploding use of IP-based technologies from VoIP to cloud services, coupled with the corresponding growth in network size and complexity – it isn’t getting any easier.

The challenges associated with keeping today’s overburdened networks secure, predictable and healthy are numerous, but these three related concerns would top most network engineers’ lists:

 

  1. Security
  2. Maintenance and monitoring
  3. Performance management

Security

Practically everyone who uses information technology, let alone IT professionals, is aware that information security is a battle without end. Some specific security threats that are on the rise include malware targeting smartphones and tablets, the “consumerization” of enterprise applications on personal devices, and the need for security to evolve in line with private cloud and virtual desktop infrastructure.

According to Bradford Networks, Business Computing World and other sources, the top network concerns for 2011 revolve around trends towards “more users” (employees and unmanaged users like business partners); “more mobile devices” (managed and unmanaged), and “IP everything” – the exponential growth of IP-based, networked applications and devices from VoIP to virtual desktop infrastructure to IP storage.

More systems, more endpoints and more access over the network means not only more security challenges, but also an intensifying need to monitor the increased traffic and ensure acceptable performance.

Maintenance and Monitoring

Monitoring and managing network traffic is a top concern in any IT department. This is especially the case as monitoring efforts are ubiquitously leveraged as a way to help meet network security and performance goals. However, monitoring and troubleshooting efforts are often hampered by a lack of effective tools and integrated reporting and alerting capabilities. Many network practitioners are likewise challenged by the need to capture, store and analyze vast amounts of monitoring data involving increasingly diverse types of IP-based traffic, from video streaming to SaaS applications.

In short, as more and more organizations leverage various monitoring options to support more users and more services more efficiently, many of the challenges that arise result from a need to cope with increasing – and increasingly diverse – network traffic.

Performance Management

Managing network performance may be the network engineer’s ultimate challenge. The ever-growing diversity and volume of IP-based services that today’s organizations increasingly rely on all in turn depend on adequate network performance. When bandwidth, jitter, packet loss or latency drops even slightly below tolerance thresholds, services quickly collapse. The more traffic the network carries – and the greater the number of hops between users and services – the higher the risk of poor network performance leading to application failure.

To ensure that users can do their jobs, network engineers must be able to:

  • Continuously monitor network performance metrics (jitter, packet loss, bandwidth, latency) in real-time across multiple, distributed sites
  • Troubleshoot VoIP, IP storage, virtual desktops and other IP-based applications
  • Understand what application instances are using what percentage of available bandwidth, and what IP addresses are associated with them
  • Assess the network’s readiness for new services before deploying them

AppNeta’s cloud-based PathView Cloud network performance management solutions provides these capabilities by delivering insight in both directions between your datacenter and your remote sites – through third-party and public networks as well as your own. Delivered as a hosted service, PathView Cloud is both cost-effective and simple to deploy and manage.

Find out more about how AppNeta technology can help network engineers address the performance management challenges they face every day, and sign up for a free trial on your network today!

Organizations making the move to cloud services are well aware of the many benefits like lower startup costs, lower total cost of ownership and on-demand scalability. But many companies fail to take a hard enough look at the corresponding challenges associated with application availability and performance.

For many cloud services deployments, network performance will be the key to application performance. Why? Because every business service accessed over cloud infrastructure is by definition a remote, network-dependent service. Every user becomes a remote user and every office, even the corporate headquarters, becomes a remote office.

Even services-based applications will stumble, freeze and eventually disconnect users when network bandwidth, jitter, latency or packet loss metrics drop below acceptable thresholds. Many of the applications being moved to cloud infrastructure were not originally designed for remote access, making them even more susceptible to changes in network performance.

In short: a successful cloud services deployment depends on your ability to guarantee application performance from the user’s perspective. That means you need to manage network performance.

What are the key steps for managing network performance for cloud service deployments?

One: Network assessment

The first step in ensuring a successful cloud services deployment is to perform a comprehensive baseline assessment of network performance. When rolling out cloud services – or other IP-based services like VoIP, video conferencing, virtual desktop infrastructure (VDI) or IP storage – many organizations underestimate the operational and business risk associated with unplanned network impacts.

A network assessment is the only way to accurately know the scope of the project and its costs. It’s also the only way to know if your network is up to the task of carrying the extra traffic

Two: Continuous monitoring

Users need the performance of cloud-based services to be at least as good as what their current infrastructure delivers. To guarantee acceptable performance you need to be aware in real-time of the ever-changing status of the networks connecting remote users to applications. Latency, jitter and other key network performance metrics can fluctuate continuously in response to changes in traffic and other factors

Continuous monitoring capability is also required to give you real-time visibility into service levels. This is the basis for troubleshooting network problems, as well as for ensuring that cloud and other third-party providers are meeting their contractual commitments.

Further, the physical distance that data must take between the cloud and the user has a huge impact on performance, especially for TCP based applications. This parameter will vary among different public cloud providers, making monitoring performance over time an important step in evaluating cloud hosting options.

Three: Proactive troubleshooting

Today’s cloud-based services are business-critical and ensuring their availability is vital. Traditional break-fix approaches to network management are not adequate to meeting many of today’s SLAs.

Network engineers therefore need a way to pinpoint the exact cause and location of performance degradation — even within the virtual network and servers making up the cloud. This makes it possible proactively address network issues before they impact users. Likewise, if cloud services crash and a plethora of service providers start finger-pointing, you need to know, quickly and decisively, who is responsible for what.

Maximizing the business benefits of cloud deployments

How can organizations ensure that the performance of their network enables them to derive maximum benefits from cloud computing? AppNeta’s PathView Cloud technology enables you to guarantee application performance across all cloud, data center, remote office and mobile environments today. In addition to providing unmatched insight into network performance from the perspective of remote users, AppNeta’s cloud-based Pathview Cloud service delivers immediate time-to-value, affordable licensing and on-demand scalability.

Want to learn more? Join AppNeta on Thursday, September 8th, 2pm ET for the Preparing Your Enterprise Network for Cloud Services Deployment Webinar, or start your own free trial today!

Today marks the launch of AppNeta.

Born of the best of the technology and team of Apparent Networks, AppNeta has a bold vision to bring the benefits of cloud-computing to the world of performance management. The transformation to AppNeta started in concept nearly two years ago, gained its first traction with the launch of PathView Cloud just over a year ago, and becomes official today with our first 1,000 customers under management and the official launch.
Apparent Networks has long been known for having compelling technology in the area of Network Performance Management, although compelling is probably an understatement.  Our core “Path” technology has been used by some of the worlds largest enterprise and IT Outsourcing accounts for years.  It has been judged by some of the most demanding customers in the world as the gold-standard for distributed network performance management (NPM).

Compelling?…YES.  Easy to deploy?  Affordable?  These were seldom the words that were used to describe the legacy solutions delivered by Apparent.  For customers who really needed our solution, there was no alternative.  Our patented Path technology remains the leading solution available in the market today.  But there were many (many!) customers who could see the value, but for whom the bar was set too high in terms of cost of acquisition and ownership.  All of that has changed with AppNeta.

Our mission at AppNeta is to deliver instant-value to network leaders by providing the insight they need to guarantee the reliable delivery of networked applications such as VoIP, Video, Cloud Services and Virtualization.

Instant-value?…YES.

A cloud-based service that is enabled by a zero administration microAppliance.  Just plug it in and gain unparalleled insight in support of your networked applications.  AppNeta’s solutions are simple to deploy and manage.  No software to download, no hardware to acquire, provision or manage.  Just plug in your microAppliance (included free with your annual SaaS contract) and get immediate network performance insight through the cloud, WAN or VPN.  Application performance insight from the perspective of your remote sites?  Absolutely.  All part of an affordable annual service contract.

What’s in a name?  In this case, the future of performance management.

AppNeta.  Instant-value in Network Performance Management.

Check it out at www.appneta.com


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